acl/lib_acl_cpp/samples/dbuf/dbuf2/main.cpp

#include "stdafx.h"
#if !defined(_WIN32) && !defined(_WIN64)
#include <sys/time.h>
#endif

/**
 * dbuf_obj <EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><EFBFBD> dbuf_pool <EFBFBD>϶<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD>䣬<EFBFBD><EFBFBD> dbuf_guard ͳһ<EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD><EFBFBD>
 */
class myobj : public acl::dbuf_obj
{
public:
	myobj(acl::dbuf_guard* guard = NULL) : dbuf_obj(guard)
	{
		ptr_ = strdup("hello");
	}

	void run()
	{
		printf("----> run->hello world <-----\r\n");
	}

private:
	char* ptr_;

	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ˽<CEAA>ˣ<EFBFBD><CBA3><EFBFBD>ǿ<EFBFBD><C7BF>Ҫ<EFBFBD><D2AA><EFBFBD>ö<EFBFBD><C3B6>󱻶<EFBFBD>̬<EFBFBD><CCAC><EFBFBD>䣬<EFBFBD><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	// dbuf_guard ͳһ<CDB3><D2BB><EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD>ͷű<CDB7><C5B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD>Ķ<EFBFBD>̬<EFBFBD>ڴ<EFBFBD>(ptr_)
	~myobj()
	{
		free(ptr_);
	}
};

static void test_dbuf(acl::dbuf_guard& dbuf)
{
	for (int i = 0; i < 102400; i++)
	{
		// <20><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
		char* ptr = (char*) dbuf.dbuf_alloc(10);
		(void) ptr;
	}

	for (int i = 0; i < 102400; i++)
	{
		// <20><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>
		char* str = dbuf.dbuf_strdup("hello world");
		if (i < 5)
			printf(">>str->%s\r\n", str);
	}

	// <20><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>

	(void) dbuf.dbuf_alloc(1024);
	(void) dbuf.dbuf_alloc(1024);
	(void) dbuf.dbuf_alloc(2048);
	(void) dbuf.dbuf_alloc(1024);
	(void) dbuf.dbuf_alloc(1024);
	(void) dbuf.dbuf_alloc(1024);
	(void) dbuf.dbuf_alloc(1024);
	(void) dbuf.dbuf_alloc(1024);
	(void) dbuf.dbuf_alloc(1024);
	(void) dbuf.dbuf_alloc(1024);
	(void) dbuf.dbuf_alloc(1024);
	(void) dbuf.dbuf_alloc(10240);

	for (int i = 0; i < 10000; i++)
	{
		// <20><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD> dbuf_obj <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣬲<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD> dbuf_guard <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		// dbuf_obj <20>Ĺ<EFBFBD><C4B9>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><D3B6><EFBFBD>֮<EFBFBD><D6AE> dbuf_guard ͳһ<CDB3><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

		myobj* obj = dbuf.create<myobj>(&dbuf);

		// <20><>֤ dbuf_obj <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> dbuf_guard <20>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>
		assert(obj == dbuf[obj->pos()]);

		// <20><><EFBFBD><EFBFBD> dbuf_obj <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> myobj <20>ĺ<EFBFBD><C4BA><EFBFBD> run
		if (i < 10)
			obj->run();
	}

	for (int i = 0; i < 10000; i++)
	{
		myobj* obj = dbuf.create<myobj>();

		assert(dbuf[obj->pos()] == obj);

		if (i < 10)
			obj->run();
	}

	for (int i = 0; i < 10000; i++)
	{
		myobj* obj = dbuf.create<myobj>(&dbuf);

		// <20><>Ȼ<EFBFBD><C8BB><EFBFBD>ν<EFBFBD> dbuf_obj <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> dbuf_guard <20>У<EFBFBD><D0A3><EFBFBD>Ϊ dbuf_obj
		// <20>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><D4BF>Է<EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD>ظ<EFBFBD><D8B8><EFBFBD><EFBFBD><EFBFBD>
		(void) dbuf.push_back(obj);
		(void) dbuf.push_back(obj);
		(void) dbuf.push_back(obj);

		assert(obj == dbuf[obj->pos()]);

		if (i < 10)
			obj->run();
	}
}

static void wait_pause()
{
	printf("Enter any key to continue ...");
	fflush(stdout);
	getchar();
}

static void test1()
{
	// dbuf_gaurd <20><><EFBFBD>󴴽<EFBFBD><F3B4B4BD><EFBFBD>ջ<EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD>
	acl::dbuf_guard dbuf;

	test_dbuf(dbuf);
}

static void test2()
{
	// <20><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD> dbuf_guard <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD>ٸö<D9B8><C3B6><EFBFBD>
	acl::dbuf_guard* dbuf = new acl::dbuf_guard;

	test_dbuf(*dbuf);

	// <20>ֹ<EFBFBD><D6B9><EFBFBD><EFBFBD>ٸö<D9B8><C3B6><EFBFBD>
	delete dbuf;
}

static void test3()
{
	// <20><><EFBFBD>ڴ<EFBFBD><DAB4>ض<EFBFBD><D8B6><EFBFBD> dbuf_pool <20><>Ϊ dbuf_guard <20><><EFBFBD>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EBA3AC>
	// dbuf_guard <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>dbuf_pool <20><><EFBFBD><EFBFBD>һͬ<D2BB><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	acl::dbuf_guard dbuf(new acl::dbuf_pool);

	test_dbuf(dbuf);
}

static void test4()
{
	// <20><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD> dbuf_guard <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱָ<CAB1><D6B8><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7>䱶<EFBFBD><E4B1B6>Ϊ 10<31><30>
	// <20><>ָ<EFBFBD><D6B8><EFBFBD>ڲ<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>СΪ 4096 * 10 = 40 KB<4B><42>ͬʱ
	// ָ<><D6B8><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
	acl::dbuf_guard dbuf(10, 100);

	test_dbuf(dbuf);
}

static void test5()
{
	acl::dbuf_pool* dp = new acl::dbuf_pool;

	// <20><><EFBFBD>ڴ<EFBFBD><DAB4>ض<EFBFBD><D8B6><EFBFBD><EFBFBD>϶<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD> dbuf_guard <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><D4BD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>
	// <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>
	acl::dbuf_guard* dbuf = new (dp->dbuf_alloc(sizeof(acl::dbuf_guard)))
		acl::dbuf_guard(dp);

	test_dbuf(*dbuf);

	// <20><>Ϊ dbuf_gaurd <20><><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD> dbuf_pool <20>ڴ<EFBFBD><DAB4>ض<EFBFBD><D8B6><EFBFBD><EFBFBD>϶<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD>
	// ֻ<><D6BB>ͨ<EFBFBD><CDA8>ֱ<EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD> dbuf_guard <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>е<EFBFBD><D0B5>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	// <20>Ȳ<EFBFBD><C8B2><EFBFBD>ֱ<EFBFBD><D6B1> dbuf_pool->desotry()<29><>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1> delete dbuf_guard <20><>
	// <20><><EFBFBD><EFBFBD> dbuf_guard <20><><EFBFBD><EFBFBD>
	dbuf->~dbuf_guard();
}

class myobj2 : public acl::dbuf_obj
{
public:
	myobj2() {}

	void run()
	{
		printf("hello world\r\n");
	}

private:
	~myobj2() {}
};

class myobj3 : public acl::dbuf_obj
{
public:
	myobj3(int i) : i_(i) {}

	void run()
	{
		printf("hello world: %d\r\n", i_);
	}

private:
	~myobj3() {}

private:
	int i_;
};

class myobj_dummy // : public acl::dbuf_obj
{
public:
	myobj_dummy() {}

	void run()
	{
		printf("can't be compiled\r\n");
	}

private:
	~myobj_dummy() {}
};

static void test6()
{
	acl::dbuf_guard dbuf;

	myobj* o = dbuf.create<myobj>();
	o->run();

	myobj* o1 = dbuf.create<myobj>(&dbuf);
	o1->run();

	myobj2* o2 = dbuf.create<myobj2>();
	o2->run();

	myobj3* o3 = dbuf.create<myobj3>(10);
	o3->run();

	for (int i = 0; i < 10; i++)
	{
		myobj3* o4 = dbuf.create<myobj3>(i);
		o4->run();
	}

	// below codes can't be compiled, because myobj_dummy isn't
	// acl::dbuf_obj's subclass
	// myobj_dummy* dummy = dbuf.create<myobj_dummy>();
	// dummy->run();
}

int main(void)
{
	acl::log::stdout_open(true);

	test1();
	wait_pause();

	test2();
	wait_pause();

	test3();
	wait_pause();

	test4();
	wait_pause();

	test5();
	wait_pause();

	test6();
	return 0;
}